Problem with Parenting Mesh to Armature
Your bones might be moved in the pose mode. To reset all the bones do the following.


Make sure you are in pose mode
Select all the bones
press Alt + G, Alt + R, Alt + S to reset position, rotation and scale respectively.


Without more information than you gave in those screenshots, I can't really help any more. There might be some issues if you used a mirror modifier. (because then you need to name your bones with .r (right) and .l (left) correctly.